数组输出的问题
<body><script language="javascript" >
funtion array_a(size){
this.length=size;
for (var x=1;x<=size;x++)
this[x]=null;
reture this;
}
</script>
<script language="javascript">
t=new array_a(3);
t[1]="交纳";
t[2]="部分交纳";
t[3]="未交纳";
for (var i=1;i<=3;i++){
document.write(t[i]);
</script>
请问怎么不能输出呢?请大虾帮忙~~~